Doubly Periodic

Famous quotes containing the words doubly and/or periodic:

“A man calumniated is doubly injured—first by him who utters the calumny, and then by him who believes it.”
—Herodotus (c. 484–425 B.C.)

“It can be demonstrated that the child’s contact with the real world is strengthened by his periodic excursions into fantasy. It becomes easier to tolerate the frustrations of the real world and to accede to the demands of reality if one can restore himself at intervals in a world where the deepest wishes can achieve imaginary gratification.”
—Selma H. Fraiberg (20th century)